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https://issues.apache.org/jira/browse/CALCITE-6756?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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xiong duan resolved CALCITE-6756.
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Fix Version/s: 1.39.0
Assignee: xiong duan
Resolution: Fixed
> Preserving CAST of STRING operand in binary comparison for PostgreSQL
> ---------------------------------------------------------------------
>
> Key: CALCITE-6756
> URL: https://issues.apache.org/jira/browse/CALCITE-6756
> Project: Calcite
> Issue Type: Bug
> Reporter: xiong duan
> Assignee: xiong duan
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.39.0
>
>
> In Postgresql:
> {code:java}
> SELECT * FROM table where cast('10' as text) = 1; // throw operator does not
> exist: text = integer
> SELECT * FROM table where cast('10' as varchar) = 1; // operator does not
> exist: character varying = integer
> SELECT * FROM table where cast('10' as char) = 1; //operator does not exist:
> character = integer{code}
> So when generating Postgres SQL, we need to preserve the CAST of STRING.
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